The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2009
Filed:
Nov. 08, 2007
Fraser C. Gibbs, Waterloo, CA;
Fraser C. Gibbs, Waterloo, CA;
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
Methods and apparatus for use in a wireless communication device for re-establishing communications with a wireless communication network are described. In one illustrative technique, a data connection is maintained with the wireless network for communicating data with use of data connection parameters (e.g. an encryption parameter). In response to a communication failure, the wireless device attempts to establish a new data connection with the wireless network. To do this, the wireless device sends a message to the wireless network which causes the data connection parameters to be reset. Preferably, the message is a disconnect frame. After the message is sent, the wireless device sends an attach request to the wireless network. Thereafter, the wireless device communicates data over the new data connection with use of new data connection parameters.